Trolley.



PATENTE.) JAN. 29. 1907.

um E R m. J... QPU 0W A. .7 2 4 8 o., N

TROLLEY. APPLICATION FILED MAR.13.1906.

TSV-SHEET 1l W. ...Qmc \..1%N MN.

."No. 342,740. PATENTBD JAN. 29, 1907.

P. J, WIRES. TROLLEY.

APPLIOATION FILED MAR. l3`,\l\906. l

3 SHEETS-'SHEET 2.

Pczrl I v 'PATENTED MN. 29, 1907. P. J. WIRES.

v TROLLEY. APPLIATION ILIED NARI 13.1905.

'3 SHEETS-SHEET s.

1 Witwe/ea Worum;

'Clra'w'ings, the :mineral 'l fle arene @aerien EL J. Vir OF SBORN, GHIO.

no. e-iavec.

Specification of Letters Patent.

.cemented Jan. 29, 1907.

,iipplicaticn lcd Merch 13, 1905. Serial No. 395,859.

trolleys. for electric mi! k provide a trollo;

f l, freely of the invention if, which will 'pori it the i lateral ariatione in the ate itself to all s diversions, f and height ol" lle}'"\\'ire Mit-bont strain upon the trollev-pele, aofi .rlicli will thereby .reduce weer and ear on 'warts of' the trolley, ae well as the liabi i.' v o... the trollejl. who xl jumping the wire. i

Another object to provide to pee n'iit readT rer! oval of the trolley wlicel when occasion rcqtiree and to fsecixre a free feed of electric current from the Wire to 'the ceciifcuit throng-l1 tire pole.

With the above and ol'lwr objects in the invention consiste ol tlc novel Consi, tion and combination ol parte herein;l lulljv described and. aia'efl, refer had. to the accompanying irai whichn Figure l is a eide elevation of a 'trolley onibodying the novel features of n v invention. Fig. 2 is a top plan view of the trolley be stand and connected. parten lar Viewv of tire trolley-head i we v wheel carried thereby. s side elevational view olz the trolley. is a vertical transv rse section thereof. lig. is side View ol one oi" iflie brushes or condor, 15orstrips. Fig. 7 is a crees-Seco n on the line 7 7 ci Fig. l. Fig. il e side ilevalion a liotli'lieil Terni ol" trolley. 9 is longitudinal section through the lice i of, and Fig. i@ is a top, plan View ol" lcleTin-Q; new More particularly to the tire trol` ley base or steriel, which is provided with bearing socket or sleeve it, adapted to turn horizontally on a vertical pivot bolt or Stein 8, extending downward. tli 'cogli the roof ci the car and adapted in practiceto be com neeted with the elen'ents of the motor-leed circuit on tbe car. Apolo-So yporting bracket iis forked at its lower enrol to en brace the upper portion of tl'lo sleeve 2 and is pvotall'y mounted to swing in a. verticalplane upon pivotecrews which enter the sleeve, as

wn in Fig. 7. The 'upper end of the bracket il is provided With a socket to receive the lower end oi the trolley-pole 6. From the aries or" the bracket 4 project curved or .sognental'slioee 7, to which are attached at a point adjacent to the pole-socket and rearwardly-ci' the plane of the pivot-bolts 5 the inner ends of' flexible straps 8, which may tlie form of cords, Wires, leather straps, or chains, the outer ends of said straps being attached to an angliiar connecting-piece 9.

Disposed between the comiectingfpiece 9' and a. sig iler connecting or bridge piece 10 are a series of coiled springs lLsaid springs being attached their ends to the Said con necting or bridge pieces and serving to exert pressure to throw the pole upward and maintain the trolley-wl'ieel in contact with tbe trolley-Wire. The brdge-picce l0 is connected to a sorevv-bolt or stein i2, attached en upright i3@ at tbe forward end of the l front arln i3 of the stand l, the connection between the. bridge-piece 10 and the stein 12 beine icli as tc pernit said bridgwpiece to be at usted on the stem to regi. late the poll of the :springe l1. 'The stand i, 'with the trolley-pole and wlieei carried thereby are adapted to swing on the bolt or en; 3 as an airis to pero it the trolley to be reversed in the usual kmanner.

llivctally connected at its forward end to 'the upper end of the pole 6, as indicated' at le, is troll.e}'supporting head comprising a main bracket or head proper, l5, which is pivotallj; connected in rear of the pivotal connection ifi with the upper end of a spplernental Halley pole or brace 16, as indicated at 17, ille lov(V r end of said pole or brace being pivtiul :t i8 to an arm 19, extending rear' Milly from the Socket or sleeve 2 ofthe base steil l. The supplemental pole cr brace i@ time nicunted to act in the nature of a ccuntcracting link to support the head 15 andpornit the Seine to swing freely in a veri, cal plane to adapt the trolley-Wheel to vary its 'p eition to accord with the height of the Wire, the head 15, however, being maintained by the pole and brace in a horizontal position,

The head 15 is provided with a lateral1yswinging Wlieelesupporting section or bracket 20, connected thereto by a vertical pivot-l bolt 2l and normally maintained, in alinernent with the heed by coiled springs 22, said springe being die osed on oyp'osite sides of the pvot-jonten adjnstab y connected IOO zo yoke 29, which stem is provide taining it imposition.

2 A. esame ,with the head and bracket to permit the latter .to swing laterally in either direction and to return the same to its normal position. The ends of the springs are adjustably connected to brackets 23, disposed, respectively, upon the head vandbracket and adjustably connected therewith by fastening-screws 24, each bracket 23 being formed with a longitudinal slot 25,by which it may be adjusted relatively to the other bracket and fastened in adjusted position to regulate the resisting pressure of the spring. This construction permits the wheel-supporting bracket 20 to have free lateral movement to adapt the Wheel to accommodate itself to lateral sinuosities, irregularities, and curves in the Wire. From the supporting-bracket 20 extends an arm 26, formed with a bearing-socket 27 to receive the stem 28 'of the trolle harp or with a flange er head-plate 30 to rest upon the arm and is'journaled in the socket to permit the yoke to swing laterally or in a horizontal plane, the lower end of the stem being threaded to'receive a securingmut 31 for re- The yoke is connected b springs 32 to adjusting-brackets 33 on'the wheel-supporting bracket 20, said brackets 33 being similar in construction to the brackets 23 previously described. it will be understood that the resisting pressure of the springs 32 may thereby be regulated and l that said springs permit the yoke to swing freely in either direction and restore the same to its normal position. This construction of the head, swinging supporting bracket, and yoke permits the trolley-wheel carried by the yoke to have a nicety ol adjustment to accommodate itsehc to Widely-varying irregularities in the wire and to thereby reduce the wear and tear thereon and the liability of the Wheel jumping the Wire.

The arms of the yoke are formed with vertical slots 34, opening through the upper edge thereof, which slots receive the threaded ends of a pivot-bolt 35, the bolt having a smooth-surfaced. central portion on which the trolleywheel 36 is revolubly mounted. In threaded engagement with the threaded ends of the' boltare cones 37, which project into bearing sockets or recesses 38, formed in the opposite sides of the Wheel 36 and which, in conjunction with said cones, provide race- WaysA for the reception of bearing-balls 39, which run in contact with the faces of the cones and suitably-hardened wear-platos 40.

he cones llt within conducting brushes or yokes 41 and are held thereby from rotation,

` and the bolt 35 is secured in fixed position Withinthe slots 34 by clamping-nuts 42, bearing against the outer sides of t ic arms of' the yoke 29. rlhe brushes 41 are provided with downwardly-j'zrojocting shanks or stoms 43, which are bent laterally to project out- Wardly through the slots or openings 44 in 'height of tho wire.

also the openings of the yoked portions of the.

brushes 41, and thereby hold the shaft and cones from upward movement. Upon detaching the cap or cover plates and slacking the nuts 42 the trolleyfwheel and its bearings may be lifted out of engagement with the harp 29, as will be readily understood, thus ermitting of ready repairs or the convenlent substitution of a new Wheel for a Wornout one.

In the embodiment of the invent-ion disclosed in Figs. 8, 9, and 10 the head is composed, as in the construction before described, oi two sections L64 and 20', the main section, bracket or head proper, 15', being in the form of a plate pivotally mounted at 14 and 17 upon the poles 6 and 16. The seetion 20 also comprises a plate projecting partially over the plate 15 and partially in rear thereof and provided with a stud 21 projecting through and turning in a bearing opening 21u in the plate l5V and threaded at its lower end to receive a retaining-nut 21h. The meeting faces of' the platos are grooved -t-o form a raceway for antifriction-balls 4S,

stops 49 being provided on opposite sides of the plate 20/ to limit its swinging movoment. The harp 29 is eccontrically pivoted, as at 29, upon its stein 28 to swin(r in a vortical plane, and the stom is journaed in the rear extension of the plate 20', bearing-balls 50 being arranged to run in a racoway formed between the plate and ilange 30. (ln the harp are two forks 51 and 52, in which wheels 36 and 36 are journalod in the manner shown in Fig. 5. I iorks and supports vertical guides 54, in" which are spring-supported bearings 55, in

which is journalod a guard-roller 56, are

rangedimmediately above the pivot 29a and adapted to bear upon the wire immediately in roar oi the wheel 36 to steady the harp and prevent said wheel 36 from bearing too heavily on the wiro'undcr the leverage eX- orted bythe Whocl 3G', which normally overbalances the wheel 36. This construction provides a wheel structure which will readily tilt to quickly conform to variations in the An inclined guard or fender plate 57 is fastened to tho forward ond of the plate 20 to guido the wire in adjusting the trollo-y to the wheels and prevent the wire from becoming caught under the front wheel.

A bridge 53 connects the IOO Enom the foregoing description, taken in connee tion with the accompanying drawings, the construction and mode oflo eration of my .improved trolley will be rea 1ly understood,l and 'it will be seen that it rovides'a Aconstruction. which permits the tro ley-vvheel to readily accommodateitself'tovariatiogs in the height of Vthe wire as Well as curves and lateral irregularities thereof, fthus reducin Vwear on the parts of the trohey-to a materia vrextent and diminishing the llability of the Wheel jumping the wire.

Equivalent elemen smay of course be sul;

stituted for these herein shown in order "to disclose one form of my invention.

Having thus described the inventionpwhat is claimed as new is.-` 'e j 1. ln a current-collector, a base, poles 'pivotally connected with the base, a supportmgspring between the base and one ofthe-poles,y aftrolley-head comprising sections, one piv;

. otally mounted upon the poles and the other pivotally mounted. to swing laterally upon .the irst-named section, said laterallyswmging section proj ecting rearwardly beyond 'the rear trolley-pole, and a harp mounted upon section.. l'

2. In a current-collector, a base, a pair of 'poles pivotally mounted u 4on the base, one in rear of the other, a trol ey-head compris- -`ing two sections, one of said sections being pivot-'ally mounted upon the poles toswing in a vertical plane and the other pivotally the rearwardly-projecting vportion of said mounted for lateral movement upon said versuch lateral movement, a harp pivotally mounted 'for lateral movement onthe rear seetlon, and springs connecting said ksection ,with the harp and serving to limit the swinging movement'sof the latter. p

4. -In a trolley, the combination of a base,

sprmg-actuated trolley-poles pivotally supported. thereon and arranged one 1n rear of or vertical movement upon the pole and the other, pivoted for lateral movement uponv said vertical moving swinging section, means ,for limiting the swing of the laterally-movable section, and a trolley-'wheel lpivotally mounted u on the laterally-movab e section in rear oft e joies.

n Ina trol ey, a harphavingits side arms provided with slots`opening through the u pleruends thereof,` a terminally-threaded bo t tting in said slots, means for clamping they bolt in position, conesrlthreaded upon the bearin -soc ets receiving sai cones,'bear and holding, the same from movement said the other, a sectional head sup orted by said ol'es, one of the head-sections eing pivoted *ing-ba s disposed in the sockets and' eontactl. ing with the cones, yokes engaging the cones yokes-bei'ng fastened 'to the arms of .the harp,

and bridge-pieces-closing the'slots in the .har -arms and yokesand retainingthebolt .an eonesm o erative position.

6. lne troley, a pole, a swinginghead carried' by 'the pole, said head proJecting rearwardly therefrom, means for` pivotalbr sup orting the head in rear of the pole, a lateral )yf-swinging bracket uponthe head 1n rear of such pivota su porting connection, a laterall -swin'ging W eel journaled uponf the 'brac etgvand means for limiting the movement di? the bracket and wheel and restoring the sar'ie'to their normal osition.

In testimony whereof affix my signatur in presence of two witnesses.

' PEARL J. WIRES. Witnesses:

' F. A. Fnlnnwoon,

A. H. DUNKEL.

. 7o ends of the boltv a' trolley-Wheel revolublgv mounted u on tbe' bolt and 'rovided wit l 

